<template>
  <div>
    <el-row :gutter="10" style="margin-left: 5px;margin-top: 5px;margin-right: 5px">
      <!--    工程信息-->
      <el-col :span="8">
        <el-card style="height: 780px" v-loading="engLoading">
          <div slot="header" class="search-header">
            <div class="show_title">工程目录：</div>
            <el-input v-model="engQueryParams.engname" placeholder="搜索工程" clearable @keyup.enter.native="searchEng"
                      class="my_input"/>
            <div class="button-group">
              <el-button type="primary" icon="el-icon-search" size="mini" @click="searchEng" style="margin-left: 10px">搜索</el-button>
              <el-button icon="el-icon-refresh" size="mini" @click="resetEng">重置</el-button>
            </div>
          </div>
          <div class="engs-container" ref="engsContainer">
            <div class="eng-row" v-for="eng in engList" :key="eng.id" @click="selectEng(eng)"
                 :class="{ 'selected': eng === selectedEng }">
              <i class="folder-icon eng-folder-icon"></i>
              <div slot="reference" class="name-wrapper">
                <span size="medium" class="folder-name" style="display:inline-block;width:100%;word-wrap:break-word;white-space:normal;">{{ eng.engname }}</span>
              </div>
            </div>
          </div>
          <div class="pagination-container">
            <!-- 分页信息 -->
            <el-pagination
              @size-change="handleSizeChangeEng"
              @current-change="handleCurrentChangeEng"
              :current-page.sync="engQueryParams.pageNum"
              :page-size.sync="engQueryParams.pageSize"
              layout="total, prev, pager, next, jumper"
              :pager-count="5"
              :total="engTotal"
            ></el-pagination>
          </div>
        </el-card>
      </el-col>
      <!--    案卷信息-->
      <el-col :span="9">
        <el-card style="height: 780px" v-loading="volumeLoading">
          <div slot="header" class="search-header">
            <div class="show_title">案卷目录：</div>
            <el-input v-model="volumeQueryParams.vname" placeholder="搜索案卷" clearable
                      @keyup.enter.native="searchVolume" class="my_input"/>
            <div class="button-group">
              <el-button type="primary" icon="el-icon-search" size="mini" @click="searchVolume" style="margin-left: 5px">搜索</el-button>
              <el-button icon="el-icon-refresh" size="mini" @click="resetVolume">重置</el-button>
            </div>
          </div>
          <div class="engs-container" ref="volumeContainer">
            <div class="eng-row" v-for="volume in volumeList" :key="volume.id" @click="selectVolume(volume)"
                 :class="{ 'selected': volume === selectedVolume }">
              <i class="folder-icon volume-folder-icon"></i>
              <div slot="reference" class="name-wrapper">
                <span size="medium" class="folder-name" style="display:inline-block;width:100%;word-wrap:break-word;white-space:normal;">{{ volume.vname }}</span>
              </div>
            </div>
          </div>
          <div class="pagination-container">
            <!-- 分页信息 -->
            <el-pagination
              @size-change="handleSizeChangeVolume"
              @current-change="handleCurrentChangeVolume"
              :current-page.sync="volumeQueryParams.pageNum"
              :page-size.sync="volumeQueryParams.pageSize"
              layout="total, prev, pager, next, jumper"
              :pager-count="5"
              :total="volumeTotal"
            ></el-pagination>
          </div>
        </el-card>
      </el-col>
      <!--    文件信息-->
      <el-col :span="7">
        <el-card style="height: 780px" v-loading="fileLoading">
          <div slot="header" class="search-header">
            <div class="show_title button-group" style="margin-bottom: 10px">文件列表：</div>
            <!--            <el-input v-model="fileQueryParams.filename" placeholder="搜索文件" clearable-->
<!--                      @keyup.enter.native="searchFile" class="my_input"/>-->
<!--            <div class="button-group">-->
<!--              <el-button type="primary" icon="el-icon-search" size="mini" @click="searchFile">搜索</el-button>-->
<!--              <el-button icon="el-icon-refresh" size="mini" @click="resetFile">重置</el-button>-->
<!--            </div>-->
          </div>
          <div class="engs-container" ref="fileContainer">
            <div class="eng-row" v-for="file in fileList" :key="file.id" @click="selectFile(file)"
                 @dblclick="openFile(file)"
                 :class="{ 'selected': file === selectedFile }">
              <i class="folder-icon file-folder-icon"></i>
              <div slot="reference" class="name-wrapper">
                <span size="medium" class="folder-name" style="display:inline-block;width:100%;word-wrap:break-word;white-space:normal;">{{ file.filename }}</span>
              </div>
            </div>
          </div>
          <div class="pagination-container">
            <!-- 分页信息-->
            <el-pagination
              @size-change="handleSizeChangeFile"
              @current-change="handleCurrentChangeFile"
              :current-page.sync="fileQueryParams.pageNum"
              :page-size.sync="fileQueryParams.pageSize"
              layout="total, prev, pager, next"
              :total="fileTotal"
            ></el-pagination>
          </div>
        </el-card>
      </el-col>
    </el-row>

    <el-row :gutter="10" style="margin-left: 5px;margin-top: 5px;margin-right: 5px">
      <el-card>
        <el-row>
          <el-col :span="24" v-show="currentInfo === 'eng'">
            <eng-info-pre :eng-info="selectedEng" @updateEngInfo="getEngList"></eng-info-pre>
          </el-col>
          <el-col :span="24" v-show="currentInfo === 'volume'">
            <volume-info :volume-info="selectedVolume" @updateVolumeInfo="getVolumeList"></volume-info>
          </el-col>
          <el-col :span="24" v-show="currentInfo === 'file'">
            <file-info :file-info="selectedFile" @updateFileInfo="getFileList"></file-info>
          </el-col>
          <el-col :span="24" v-show="currentInfo === ''">
            <el-empty description="无工程信息"></el-empty>
          </el-col>
        </el-row>
      </el-card>
    </el-row>

    <el-dialog :visible.sync="videoDialogVisible" center v-loading="loadingMp4" title="文件详情" :before-close="handleVideoDialogClose">
      <video :src="videoUrl"
             autoplay="autoplay"
             ref="vueRef"
             controls width="100%">
        Your browser does not support the video tag.
      </video>
    </el-dialog>


    <!-- 文件显示弹窗 -->
    <el-dialog :visible.sync="pdfDialogVisible" title="文件详情" :width="dialogWidth" center v-dialog-drag v-dialog-drag-width v-dialog-drag-height :close-on-click-modal = "false">
      <embed :src="pdfUrl" type="application/pdf" width="100%" style="height: 80vh" >
    </el-dialog>
    <el-image-viewer v-if="imgDialogVisible" :zIndex="Number(99999)" :url-list="canvasList"
                     :on-close="closeImgViewer"/>
  </div>
</template>

<script>
import EngInfoPre from "@/views/system/check/engInfoPre";
import VolumeInfo from "@/views/system/check/volumeInfo";
import FileInfo from "@/views/system/check/fileInfo";
import {listEngPreview} from "@/api/system/enginfopre";
import {listVolumePreview} from "@/api/system/volumeinfopre";
import {getFileType, getLocalFile, listFilePreview} from "@/api/system/fileinfopre";
import Tiff from 'tiff.js'
import EngInfo from "@/views/system/search/engInfo.vue";

export default {
  components: {
    EngInfo,
    EngInfoPre,
    VolumeInfo,
    FileInfo,
    'el-image-viewer': () => import('element-ui/packages/image/src/image-viewer')
  },
  data() {
    return {
      videoDialogVisible: false, // 控制弹窗的显示与隐藏
      loadingMp4: false,
      videoUrl: "", // 存储视频文件的URL地址
      engList: [],  //工程列表
      volumeList: [],  //案卷列表
      fileList: [],  //文件列表

      engTotal: 0,  //工程总数
      volumeTotal: 0,  //案卷总数
      fileTotal: 0,  //文件总数
      ifDelete: 0,

      selectedEng: null,
      selectedVolume: null,
      selectedFile: null,
      currentInfo: 'eng',

      engQueryParams: {
        pageNum: 1,
        pageSize: 20,
        engname: null,
      },
      volumeQueryParams: {
        pageNum: 1,
        pageSize: 20,
        regprojid: null,
        vname: null,
      },
      fileQueryParams: {
        pageNum: 1,
        pageSize: 20,
        volumeid: null,
        filename: null,
      },
      canvasList:[],
      engLoading: false,
      volumeLoading: false,
      fileLoading: false,

      blobImage: "",  //图片url
      pdfUrl: "", // 存储PDF文件的URL地址
      pdfDialogVisible: false, // 控制弹窗的显示与隐藏
      imgDialogVisible: false, // 控制弹窗的显示与隐藏
      dialogWidth: "70%", // 弹窗的宽度
      dialogHeight: '80vh',
    };
  },
  created() {
    this.getEngList();
  },
  methods: {
    //获取工程信息
    getEngList() {
      this.engLoading = true;
      this.volumeList = [];
      this.fileList = [];
      listEngPreview(this.engQueryParams).then((response) => {
        setTimeout(() => {
          this.engList = response.rows;
          this.engTotal = response.total;
          this.engLoading = false;
        }, 300);
      })
        .catch((error) => {
          this.$message.error("获取工程信息失败:" + error);
          this.engLoading = false;
        });
    },
    searchEng() {
      this.engQueryParams.pageNum = 1;
      this.getEngList();
    },
    resetEng() {
      this.currentInfo = "";
      this.engQueryParams.engname = null
      this.ifDelete = 1;// 增加 ifDelete 的值，触发子组件的 ifDel 属性变化
      this.volumeList = {}
      this.volumeTotal = 0
      this.fileList = {}
      this.fileTotal = 0
      this.selectedEng = {}
      this.selectedVolume = {}
      this.getEngList();
    },
    selectEng(eng) {
      this.ifDelete = 0;
      this.selectedEng = eng;
      this.currentInfo = 'eng'
      this.volumeQueryParams.regprojid = eng.id
      // this.volumeQueryParams.regprojid = '20130101/6-41092158-2671-492c-8d0f-96082f95979d'
      this.getVolumeList();
    },
    handleSizeChangeEng(pageSize) {
      this.engQueryParams.pageSize = pageSize;
      this.getEngList();
    },
    handleCurrentChangeEng(currentPage) {
      this.engQueryParams.pageNum = currentPage;
      this.getEngList();
    },
    //获取案卷信息
    getVolumeList() {
      this.volumeLoading = true;
      this.fileList = [];
      listVolumePreview(this.volumeQueryParams).then((response) => {
        setTimeout(() => {
          this.volumeList = response.rows;
          this.volumeTotal = response.total;
          this.volumeLoading = false;
        }, 300);
      })
        .catch((error) => {
          this.$message.error("获取案卷信息失败:" + error);
          this.volumeLoading = false;
        });
    },
    searchVolume() {
      this.volumeQueryParams.pageNum = 1;
      this.getVolumeList();
    },
    resetVolume() {
      // this.volumeQueryParams.regprojid = null
      this.ifDelete = 1;// 增加 ifDelete 的值，触发子组件的 ifDel 属性变化
      this.volumeQueryParams.vname = null;
      this.fileList = {};
      this.fileTotal = 0;
      this.selectedVolume={};
      this.selectedFile={};
      this.currentInfo = "eng";
      if (this.volumeQueryParams.regprojid != null) {
        this.getVolumeList();
      }
    },
    selectVolume(volume) {
      this.ifDelete = 0;
      this.selectedVolume = volume;
      this.currentInfo = 'volume'
      this.fileQueryParams.volumeid = volume.id
      this.getFileList()
    },
    handleSizeChangeVolume(pageSize) {
      this.volumeQueryParams.pageSize = pageSize;
      this.getVolumeList();
    },
    handleCurrentChangeVolume(currentPage) {
      this.volumeQueryParams.pageNum = currentPage;
      this.getVolumeList();
    },
    //获取文件信息
    getFileList() {
      this.fileLoading = true;
      listFilePreview(this.fileQueryParams).then(response => {
        setTimeout(() => {
          this.fileList = response.rows;
          this.fileTotal = response.total;
          this.fileLoading = false;
        }, 300);
      })
        .catch((error) => {
          this.$message.error("获取文件信息失败:" + error);
          this.fileLoading = false;
        });
    },
    openMp4(file) {
      this.videoDialogVisible = true; // 显示弹窗
      this.loadingMp4 = true;
      getLocalFile(file).then((response) => {
        const blob = new Blob([response], {type: "video/mp4"});
        this.videoUrl = URL.createObjectURL(blob);
      }).catch((error) => {
        console.error("获取文件时出错:", error);
      });
      this.loadingMp4 = false;
    },

    handleVideoDialogClose(done){
      this.$refs.vueRef.pause();
      done();
    },

    searchFile() {
      this.fileQueryParams.pageNum = 1;
      this.getFileList();
    },
    resetFile() {
      // this.fileQueryParams.volumeid = null
      this.fileQueryParams.filename = null;
      if (this.fileQueryParams.volumeid != null) {
        this.getFileList();
      }
    },
    selectFile(file) {
      this.selectedFile = file;
      this.currentInfo = 'file'
    },
    // 双击文件名打开文件
    openFile(file) {
      getFileType(file).then((response) => {
        const fileType = response.toLowerCase(); // 转换为小写以确保比较不区分大小写
        if (fileType === 'pdf') {
          this.openPDF(file);
        } else if (fileType === 'jpg' || fileType === 'jpeg' || fileType === 'tif' || fileType === 'gif') {
          this.openImg(file);
        } else if (fileType === 'tiff') {
          this.openTiff(file);
        } else if (fileType === 'mp4') {
          this.openMp4(file);
        }
      });
    },
    //打开图片
    openImg(file) {
      this.canvasList=[];
      this.fileForm = file; // 将文件信息保存到fileForm中，以便在getPdf函数中使用
      getLocalFile(this.fileForm)
        .then((response) => {
          const blob = new Blob([response], {type: "image/jpeg"});
          this.blobImage = URL.createObjectURL(blob);
          this.canvasList.push(URL.createObjectURL(blob))
          this.imgDialogVisible = true; // 显示弹窗
        })
        .catch((error) => {
          console.error("获取图片时出错:", error);
          // 可以添加错误处理逻辑，比如显示一个错误提示框等
        });
    },
    openTiff(file) {
      this.canvasList = [];
      this.fileForm = file;
      getLocalFile(this.fileForm).then((response) => {
        var tiff = new Tiff({buffer: response})
        for (let i = 0, len = tiff.countDirectory(); i < len; ++i) {
          tiff.setDirectory(i)
          var imgs = tiff.toDataURL() // 转化成base64
          if (imgs) {
            this.canvasList.push(imgs)
            this.imgDialogVisible = true;
          }
        }
        console.log(this.canvasList)
      }).catch((error) => {
        console.error("获取图片时出错:", error);
        // 可以添加错误处理逻辑，比如显示一个错误提示框等
      });
    },
    //打开PDF
    openPDF(file) {
      this.fileForm = file; // 将文件信息保存到fileForm中，以便在getPdf函数中使用
      getLocalFile(this.fileForm)
        .then((response) => {
          const blob = new Blob([response], {type: "application/pdf"});
          this.pdfUrl = URL.createObjectURL(blob);
          this.pdfDialogVisible = true; // 显示弹窗
        })
        .catch((error) => {
          console.error("Error occurred while fetching the PDF:", error);
          // 可以添加错误处理逻辑，比如显示一个错误提示框等
        });
    },
    handleSizeChangeFile(pageSize) {
      this.fileQueryParams.pageSize = pageSize;
      this.getFileList();
    },
    handleCurrentChangeFile(currentPage) {
      this.fileQueryParams.pageNum = currentPage;
      this.getFileList();
    },
    closeImgViewer() {
      this.imgDialogVisible = false
    },
  },
};
</script>

<style>
/* 公共样式 */
.search-header {
  display: flex;
  align-items: center;
}

.my_input {
  margin-left: auto;
  width: 37%;
}


.dialog-content {
  display: flex;
  flex-direction: column;
}

.my_button {
  display: flex;
  justify-content: flex-end;
  margin-bottom: 10px;
  margin-left: 85%;
}

.button-group {
  display: flex;
  justify-content: center;
  margin-top: 10px;
}

.engs-container {
  height: 600px;
  overflow-y: auto;
}

.eng-row {
  flex-basis: 100%;
  margin-bottom: 10px;
  display: flex;
  align-items: center;
}

.eng-row:hover {
  cursor: pointer;
  background-color: #E5F3FF;
}

.pagination-container {
  margin-top: 10px;
}

.folder-icon {
  flex-shrink: 0;
  width: 20px;
  height: 20px;
  margin-right: 5px;
  background-size: cover;
}

.folder-name {
  flex-grow: 1;
  font-size: 14px;
  color: #333;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}


.show_title {
  font-weight: bold;
  font-size: 20px;
  color: rgb(26, 115, 198);
}

.dialog-content {
  display: flex;
  flex-direction: column;
}

.button-group {
  display: flex;
  justify-content: space-between;
  margin-bottom: 10px;
}

/* 不同图标的样式 */
.eng-folder-icon {
  background-image: url("~@/assets/icons/folder/eng-icon.png");
}

.volume-folder-icon {
  background-image: url("~@/assets/icons/folder/volume-icon.png");
}

.file-folder-icon {
  background-image: url("~@/assets/icons/folder/file-icon.png");
}

/* 选中状态的样式 */
.selected {
  /*box-shadow: 0 0 5px rgba(0, 0, 0, 0.3);*/
  background-color: #CCE8FF;
}
</style>

